LiPo batteries for wearable devices
Wearables are the strongest application thread in the LiPo range: the family listings mention wearable use more than any other application. Thin, round and curved cells all serve this market, for different device shapes.
Dimension-callout pouch outline — the site's recurring diagram motif. It is a schematic, not a photograph of a product, factory or customer project.
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A wrist device constrains a battery in three ways at once: thickness, outline and comfort. A band device wants a curved cell that follows the wrist; a watch wants a round or small flat cell that fills a disc or rounded-square cavity; a slim tracker wants an ultra-thin cell that disappears into the housing. No single cell serves all three, which is why the wearable pages on this site route by shape rather than offering one wearable battery.
Two representative listings anchor this page. The 150732 curved cell is listed for wearables at 3.7 V and 20 mAh, in a 1.5 x 7 x 32 mm outline, with a 300-times cycle life. The 142030 ultra-thin cell is listed for smart cards, RFID tags and miniature medical devices at 50 mAh with a 1.4 mm thickness in its title — adjacent to wearables in the thin-device family, though its listed applications are cards and tags rather than wrist devices. Both listings carry their own minimum orders, enquiry ranges and lead times, and neither describes the other.
For a wearable inquiry, send the device outline, the cavity dimensions, the runtime target and the charging arrangement. Wearables charge often and sit against skin, so protection, heat behaviour and cycle life under daily charging deserve explicit questions. A curved cell that fits but cannot meet the runtime target is a redesign signal, not a reason to accept a shorter runtime silently — raise it early, while the enclosure can still change.